Malicious PDF — malware analysis report

Static analysis result for SHA-256 d228add2e67ca234…

MALICIOUS

PDF

33.2 KB Created: 2021-07-04 12:48:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: bf37dc5284e081d13f1dca820001a456 SHA-1: c80a5db14d4d0dd13c452747d52077628e98e210 SHA-256: d228add2e67ca234706e5d38954a03265cf02cb385ed5838eb361eacccb84cbd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and generators to trick users into clicking malicious links. The primary link directs to a known malicious redirector, which in turn serves further malicious PDF files. The document's content and embedded links strongly suggest a phishing or scam campaign aimed at driving traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/minecraft-for-free-on-phone-game-hack In PDF document text
    • http://atiltd.com.tw/upload/files/free-movie-websites-tiktok_GM835599320.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-gte-free-robux-easy-and-fast-hack_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/roblox-how-to-buy-stuff-for-free_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/roblox-cheat-engine-downlaod_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-get-free-robux-on-roblox-windows-10_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/fre-shavacado-compilation-roblox-id_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/how-to-get-free-robux-on-roblox-mac_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/roblox-b-tools-hack_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/20210-robux_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/robux-generator-hack-2021-xonnek_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/roblox-robux-free-bc_GM431946152.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://atiltd.com.tw/upload/files/free-robux-no-scam-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E91 22000 bytes
SHA-256: 024ed470fc9a2afb5a93541a989defc7b34334667859899117d300f8ce6c367d
font_01_sfnt_off00005ef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF2 18316 bytes
SHA-256: 98b982fa9bba8938ef3d8154301223d263821ddf45527be8764ebf15d682b3f6

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